MY 08 Tahoe check eng light came on code is p0449 and the remote start will not work. it is factory it sounds like all is working but doesn't start if you look in the window when you try the check eng light comes on . any help thanks i'm new here this is a awesome forum.

 

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Possible causes for the code you have provided are:

- Vacuum leaks, damaged hoses or improper routing
- EVAP system - Check fuel cap, canister, valves or components
- Faulty purge or vent solenoids
- Check connector and wiring
- Fuel saturated vapor canister
- Failed EVAP vent solenoid

The vehicle cannot be remote started if the key is in the ignition, the hood is not closed, or if there is an emission control system malfunction and the Check Engine Light is displayed.

Also, the engine will turn off during a remote vehicle start if the coolant temperature gets too high or if the oil pressure gets low.

I encourage you to have the vehicle inspected by a certified technician for additional assistance. If you need assistance locating a technician near you, please provide your zip code for a listing.

Louis
GM Customer Service

 

Thanks for the help..